Volume 44 Issue 8
Sep.  2015
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Nie Ruijie, Li Lijuan, Wang Chaolin, Xu Yanke. A combined non-uniformity correction algorithm of IR staring imaging system[J]. Infrared and Laser Engineering, 2015, 44(8): 2339-2346.
Citation: Nie Ruijie, Li Lijuan, Wang Chaolin, Xu Yanke. A combined non-uniformity correction algorithm of IR staring imaging system[J]. Infrared and Laser Engineering, 2015, 44(8): 2339-2346.

A combined non-uniformity correction algorithm of IR staring imaging system

  • Received Date: 2014-12-21
  • Rev Recd Date: 2015-01-03
  • Publish Date: 2015-08-25
  • With the development of IRFPA techniques, IR staring imaging system has been applied in more and more fields. In these applications, the residual non-uniformity and the non-uniformity correction(NUC) algorithms of the output IR images are of major concern. In order to resolve this problem, the non- uniformity sources and their characteristics in spatial frequency domain were studied firstly in this paper, and then the advantages and the disadvantages of both Calibration-based and Scene-based NUC algorithms were taken into account, and finally a combined non-uniformity correction algorithm including Blind-pixel Detection and Compensation was put forward to implement the non-uniformity correction, and the experiments results were given as well. The results shows that the combined non-uniformity correction algorithm can prevent the RNU to increase with the changes of time and working environments well, and has excellent performances in NUC technical applications.
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A combined non-uniformity correction algorithm of IR staring imaging system

  • 1. China Airborne Missile Academy,Luoyang 471009,China

Abstract: With the development of IRFPA techniques, IR staring imaging system has been applied in more and more fields. In these applications, the residual non-uniformity and the non-uniformity correction(NUC) algorithms of the output IR images are of major concern. In order to resolve this problem, the non- uniformity sources and their characteristics in spatial frequency domain were studied firstly in this paper, and then the advantages and the disadvantages of both Calibration-based and Scene-based NUC algorithms were taken into account, and finally a combined non-uniformity correction algorithm including Blind-pixel Detection and Compensation was put forward to implement the non-uniformity correction, and the experiments results were given as well. The results shows that the combined non-uniformity correction algorithm can prevent the RNU to increase with the changes of time and working environments well, and has excellent performances in NUC technical applications.

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